도푸리의 생활공방

import java.io.*; import java.util.ArrayList; import java.util.Arrays; import java.util.stream.Stream; public class Main { public static void main(String[] args) throws IOException { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out)); String[] lines1; int count = 0; while(true){//시나리오 관리 lines1 = br..

코딩테스트 2023. 5. 12. 14:18

import java.awt.*; import java.io.*; import java.util.ArrayList; import java.util.Collections; import java.util.Objects; public class Main { public static void main(String[] args) throws IOException { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out)); int count = Integer.parseInt(br.readLine()); fo..

코딩테스트 2023. 5. 9. 20:53

import java.io.*; import java.util.*; public class Main { public static void main(String[] args) throws IOException { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out)); Set wordsSet = new HashSet(); //중복 제거용 세트 선언 List words;//정렬용 리스트 선언 int count = Integer.parseInt(br.readLine());// 값을 공백 기준으로 여러개..

코딩테스트 2023. 5. 9. 20:52

import java.io.*; import java.util.ArrayList; import java.util.Arrays; import java.util.stream.Stream; public class Main { public static void main(String[] args) throws IOException { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out)); ArrayList sums = new ArrayList(); int max = 0; int maxCount = 0; ..

코딩테스트 2023. 5. 9. 20:46

import java.io.*; import java.util.ArrayList; import java.util.Collections; public class Main { public static void main(String[] args) throws IOException { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out)); int sum1 = 0,sum2 = 0; //민국이 점수총합,대한이 점수 총합 변수 int tapeLength = 0; int tapeCount = 0; double..

코딩테스트 2023. 5. 9. 20:30

class Solution { fun solution(arr1: Array, arr2: Array): Array { val rows = arr2[0].size val cols = arr1.size var answer = Array(cols) { IntArray(rows) } for((i , value1) in arr1.withIndex()) { for(k in 0..value1.size-1) { for(j in 0..rows-1) { answer[i][j] += arr1[i][k] * arr2[k][j] } } } return answer } } 행렬에 대한 이해가 부족해서 문제를 이해하는데 오래 걸렸다. a1 a2 b1 b2 c1 c2 * x1 x2 y1 y2 = a1 * x1 + a2 * y1 a1 ..

코딩테스트 2023. 1. 25. 22:59

class Solution { fun solution(clothes: Array): Int { var answer = 1 var clothMap = mutableMapOf() var typeSize = 0 for(i in 0..clothes.size-1) { if(clothMap.containsKey(clothes[i][1])) { typeSize = clothMap.get(clothes[i][1])!! + 1 clothMap.put(clothes[i][1],typeSize) } else { clothMap.put(clothes[i][1],1) } } for(item in clothMap) { answer *= item.value +1 } answer -= 1 return answer } } 첨에 해시 ..

코딩테스트 2023. 1. 25. 21:28

import java.util.* class Solution { fun solution(s: String): Int { var answer: Int = 0 var moveStr = "" var remainStr = s var stack = Stack() for(i in 0..s.length-1) { moveStr = remainStr[0].toString() for(i in 0..remainStr.length-1) { if(remainStr[i] == '(' || remainStr[i] == '[' || remainStr[i] == '{') { stack.push(remainStr[i]) } else { if(stack.size!=0) { when(stack.peek()) { '(' -> { if(rem..

코딩테스트 2023. 1. 24. 01:53